ASTM D1075-07
(Test Method)Standard Test Method for Effect of Water on Compressive Strength of Compacted Bituminous Mixtures
Standard Test Method for Effect of Water on Compressive Strength of Compacted Bituminous Mixtures
SIGNIFICANCE AND USE
This test method is useful as an indicator of the susceptibility to moisture of compacted bitumen-aggregate mixtures.
SCOPE
1.1 This test method covers measurement of the loss of compressive strength resulting from the action of water on compacted bituminous mixtures containing asphalt cement. A numerical index of reduced compressive strength is obtained by comparing the compressive strength of freshly molded and cured specimens with the compressive strength of duplicate specimens that have been immersed in water under prescribed conditions.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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American Association State
Designation:D1075–07 Highway and Transportation Officials Standard
AASHTO No.: T165
Standard Test Method for
Effect of Water on Compressive Strength of Compacted
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Bituminous Mixtures
This standard is issued under the fixed designation D1075; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4. Apparatus
1.1 This test method covers measurement of the loss of 4.1 One or more automatically controlled water baths shall
compressive strength resulting from the action of water on beprovidedforimmersingthespecimens.Thebathsshallbeof
compacted bituminous mixtures containing asphalt cement. A sufficient size to permit total immersion of the test specimens.
numerical index of reduced compressive strength is obtained They shall be so designed and equipped as to permit accurate
by comparing the compressive strength of freshly molded and and uniform control of the immersion temperature within
cured specimens with the compressive strength of duplicate 61°C (1.8°F). They shall be constructed of or lined with
specimens that have been immersed in water under prescribed copper, stainless steel, or other nonreactive material.The water
conditions. used for the wet storage of the specimens shall be either
1.2 This standard does not purport to address all of the distilled or otherwise treated to eliminate electrolytes and the
safety concerns, if any, associated with its use. It is the bath shall be emptied, cleaned, and refilled with fresh water for
responsibility of the user of this standard to establish appro- each series of tests.
priate safety and health practices and determine the applica- 4.2 A manually or automatically controlled water bath also
bility of regulatory limitations prior to use. shall be provided for bringing the immersed specimens to the
temperature of 25 6 1°C (77 6 1.8°F) for the compression
2. Referenced Documents
test.Any convenient pan or tank may be used provided it is of
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2.1 ASTM Standards:
sufficient size to permit total immersion of the specimens.
C670 Practice for Preparing Precision and Bias Statements 4.3 A balance and a water bath with suitable accessory
for Test Methods for Construction Materials equipment will be required for weighing the test specimens in
D1074 Test Method for Compressive Strength of Bitumi-
air and in water in order to determine their densities, the
nous Mixtures amount of absorption, and any changes in specimen volume
D2726 Test Method for Bulk Specific Gravity and Density
resulting from the immersion test.
of Non-Absorptive Compacted Bituminous Mixtures 4.4 A supply of flat transfer plates of glass or other
D6752 Test Method for Bulk Specific Gravity and Density
non-reactivematerialwillberequired.Oneoftheseplatesshall
of Compacted Bituminous Mixtures Using Automatic be kept under each of the specimens during the immersion
Vacuum Sealing Method
period and during subsequent handling, except when weighing
and testing, in order to prevent breakage or distortion of the
3. Significance and Use
specimens.
3.1 This test method is useful as an indicator of the
5. Test Specimens
susceptibility to moisture of compacted bitumen-aggregate
mixtures.
5.1 At least six 101.6 by 101.6-mm (4 by 4-in.) cylindrical
specimens shall be made for each test. The procedures de-
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scribed in Test Method D1074 shall be followed in preparing
This test method is under the jurisdiction of ASTM Committee D04 on Road
and Paving Materials and is the direct responsibility of Subcommittee D04.22 on the loose mixtures and in molding and curing the test speci-
Effect of Water and Other Elements on Bituminous Coated Aggregates.
mens.
Current edition approved Feb. 15, 2007. Published March 2007. Originally
approved in 1949. Last previous edition approved in 2000 as D1075 – 96 (2005).
NOTE 1—This test method was developed to measure the loss of
DOI: 10.1520/D1075-07.
compressive strength due to water for specimens designed at approxi-
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
mately 6 % air voids by the compaction procedures of Test Method
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
D1074. When used with mixtures designed by other test methods, it is
Standards volume information, refer to the standard’s Document Summary page on
possible that the specimens will be compacted to some other void level
the ASTM website.
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